here, via au currant.

"Indeed on the strength of it I came up with a theory, which is that brunettes are on average more attractive. Its simple really -- assuming an equal mix of attrative and less attractive women amongs blonds and brunettes, a certain proportion of the latter who aren't attrative die their hair blonde in an atttempt to be (particularly the type who go to post-Brits parties). Thus the proportions change."

i would like to hear more theories on what kind of women are attractive. these are providing entertainment. (don't worry, i don't actually take this seriously or think that the proponents do either.)